公开(公告)号：US20250016636A1

公开(公告)日：2025-01-09

申请号：US18711351

申请日：2021-11-24

Applicant: Nokia Technologies Oy ,  NOKIA OF AMERICA CORPORATION

Inventor： Halit Murat GÜRSU ,  Philippe GODIN ,  Sung Hwan WON ,  Ömer BULAKCI ,  Muhammad NASEER-UL-ISLAM ,  Ahmad AWADA

IPC: H04W36/00

Abstract: A method including receiving, from a second cell, a paging message associated with a network slice supported by a first cell, wherein the paging message includes at least an indication indicating to wait for a command indicative of performing a re-direction or a handover from the second cell to the first cell before transmitting a service request to a network associated with the first cell and the second cell; performing, by the terminal device, the re-direction or the handover from the second cell to the first cell upon receiving the command; and transmitting, through the first cell, the service request upon completing the re-direction or the handover from the second cell to the first cell, wherein the service request indicates a request for establishing a protocol data unit session associated with the network slice.

公开(公告)号：US20240365220A1

公开(公告)日：2024-10-31

申请号：US18684920

申请日：2021-08-20

Applicant: Nokia Technologies Oy

Inventor： Ömer BULAKCI ,  Rajesh Babu NATARAJAN ,  Sung Hwan WON ,  Philippe GODIN ,  Halit Murat GÜRSU ,  Muhammad NASEER-UL-ISLAM ,  Alessio CASATI

IPC: H04W48/18 ,  H04W76/38

CPC classification number: H04W48/18 ,  H04W76/38

Abstract: According to the disclosure there is provided an apparatus. The apparatus comprises means for performing: receiving first information of a network slice that is to be made available to the apparatus on a temporary basis, the first information comprising an identifier of the network slice; and receiving second information of the network slice, the second information comprising timing information of the network slice, indicating it's available period after expiry of which its removed from the allowed network slices list without any explicit signalling.

公开(公告)号：US20240334365A1

公开(公告)日：2024-10-03

申请号：US18594710

申请日：2024-03-04

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Sung Hwan WON

IPC: H04W60/02 ,  H04W4/90 ,  H04W84/04

CPC classification number: H04W60/02 ,  H04W4/90 ,  H04W84/042

Abstract: A method, apparatus, and computer program product provide enhanced emergency services fallback procedures. The user equipment may indicate the emergency services fallback within the registration request message to a network entity, such as the access and mobility management function. Upon receiving the registration request message the emergency services fallback procedure is triggered. The user equipment receives an indication, such as via an access stratum layer and the received indication is considered, such as by the non-access stratum layer in the user equipment, as the registration response message. The user equipment is configured to respond differently upon receiving differently configured registration response rejection messages or upon expiration of a response timer.

公开(公告)号：US20230130168A1

公开(公告)日：2023-04-27

申请号：US18088910

申请日：2022-12-27

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Sung Hwan WON

IPC: H04W4/90 ,  H04W76/38 ,  H04W76/50

Abstract: An apparatus comprising means for performing: determining an expiration of a service request timer generated in association with a service request message from the apparatus; and handling the expiration of the service request timer based on a determination of a service type of the service request message.

公开(公告)号：US20230127814A1

公开(公告)日：2023-04-27

申请号：US18089647

申请日：2022-12-28

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Sung Hwan WON ,  György Tamás WOLFNER

IPC: H04W48/18 ,  H04W60/00

Abstract: A method comprising: determining, by a user equipment, that a non-closed access group cell is available to the user equipment in a public land mobile network, wherein the public land mobile network is identified by a public land mobile network identity and the user equipment is only allowed to access the public land mobile network via one or more closed access group cells; displaying the public land mobile network identity to a user; receiving user input selecting the public land mobile network identity; and transmitting a registration request to the public land mobile network identified by the public land mobile network identity.

公开(公告)号：US20220361135A1

公开(公告)日：2022-11-10

申请号：US17307675

申请日：2021-05-04

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Sung Hwan WON ,  Alessio CASATI ,  Navin HATHIRAMANI ,  Devaki CHANDRAMOULI

IPC: H04W60/04 ,  H04W76/11 ,  H04W48/18 ,  H04W48/16

Abstract: Systems, methods, apparatuses, and computer program products for efficient registration for partially supported service areas are provided. One method may include providing, to at least one user equipment registered to a network within a registration area, information comprising one or more lists of single network slice selection assistance information (S-NSSAIs) and one or more lists of tracking area identities (TAIs). The one or more single network slice selection assistance information (S-NSSAIs) is included in a list of rejected single network slice selection assistance information (S-NSSAIs) or in a list of extended rejected single network slice selection assistance information (S-NSSAIs), and is associated with a cause value indicating that the one or more single network slice selection assistance information (S-NSSAIs) is not supported uniformly in the registration area and is not supported in a current tracking area.

公开(公告)号：US20220232457A1

公开(公告)日：2022-07-21

申请号：US17577799

申请日：2022-01-18

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Sung Hwan WON

IPC: H04W48/10 ,  H04W48/02

Abstract: Systems, methods, apparatuses, and computer program products for steering terminals to a different network in case of a disaster. A method may include sending, to a network node of a first network, a first message including an indication that a disaster condition applies to a second network when the disaster condition applies to the second network. The method may also include sending a second message to the network node of the first network including an indication that the disaster condition no longer applies to the second network when the disaster condition no longer applies to the second network.

公开(公告)号：US20210385722A1

公开(公告)日：2021-12-09

申请号：US17281778

申请日：2018-10-04

Applicant: Nokia Technologies Oy

Inventor： Sung Hwan WON

IPC: H04W36/32 ,  H04W36/00 ,  H04W60/06 ,  H04W12/03

Abstract: Method and apparatus for deriving a cryptographic protection to a new initial non-access stratum, NAS, message for a target network from an existing security context in an idle mode inter-system change when one or more of conditions a) to d) is met, and for deriving a mapped 5G NAS security context from a source cellular network that is an EPS security context maintained by a source MME of the EPS, in an idle mode inter-system change, when one or more of conditions 1) to 4) is met, optionally after receiving a REGISTRATION REQUEST message without integrity protection and encryption.

公开(公告)号：US20210235371A1

公开(公告)日：2021-07-29

申请号：US17256476

申请日：2018-07-02

Applicant: Nokia Technologies Oy

Inventor： Sung Hwan WON

IPC: H04W48/16 ,  H04W48/18 ,  H04W48/08

Abstract: A user equipment operating in a connected mode includes a first layer, a second layer, and a third layer. The first layer generates a request to send a non-initial non-access stratum (NAS) message over a first connection that operates according to a first radio access technology (RAT). The second layer determines whether access to the first connection is barred for the non-initial NAS message. The first layer selects a connection to deliver the non-initial NAS message between the first connection and a second connection that operates according to a second RAT in response to access to the first connection being barred. In some cases, the non-initial NAS message is a mobile originated short message service (SMS) message or an uplink NAS transport message. In some cases, the first layer is an NAS layer and the second layer is a radio resource control layer.

公开(公告)号：US20210120628A1

公开(公告)日：2021-04-22

申请号：US17253012

申请日：2018-06-25

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Sung Hwan WON

IPC: H04W76/50 ,  H04W4/90 ,  H04W48/20 ,  H04W8/24 ,  H04W36/00

Abstract: An apparatus comprising: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: determine that a user equipment is to switch from using a first radio access technology to using a second radio access technology to perform an emergency call; determine that the user equipment supports access to a core network via a cell of the second radio access technology; and cause the user equipment to switch from using the first radio access technology to the second radio access technology.